It was both. The Netherlands had relatively high bike usage before "the cycling revolution" in the 70s, but either way it's kind of a moot point.

Either way, if you're trying to insinuate that you first need the bikes and then the infrastructure, you're going to have a hard time finding good arguments.

is there a case for electric bikes? I enjoy electric bikes. It seems to add significant functionality (and I find it super fun), without changing much of the characteristics of a bicycle, biking itself (except maybe slightly more risky) and infra to charge bikes would be much more scalable.